Improvement in fly-wheels



H. GERNER.

Fly-Wheeis.

N0. 143,009. Patented September 23,1873.

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WYTNEEEEE; E INK/ENTER:-

UNITED STATES PATENT OEEIoE.

HENRY GERNER, OF NEW YORK, N. Y.-

IMPROVEMENT IN FLY-WHEELS.

Specification forming part of Letters Patent No. 143,009, dated Stptcnlser 23, 15:73; application filed September 3, 1873.

To all whom it may concern Be it known that I, HENRY GERNER, of the city, county, and State of New York, have invented certain Improvements in Fly-W'heels, of which the following is a specification:

The object of my invention is to produce a cheaper and more easily transported flywheel than heretofore, and one whose weight may be increased at pleasure. My invention consists in casting the rim or the whole of the wheel hollow, as may be desired, leaving openings in the rim, through which the material used in filling is inserted.

In order more fully to describe my invention, I referto the accompanyin gdrawin g formin g a part of this specification.

The same letters refer to like parts.

Figure I is a side view of a wheel embodying my invention. Fig. II is avertical sectional view of the same. Fig. III is a sectional view through line m 00 in Fig. II.

A is the hub of the wheel, and O O the spokes, made in the usual manner; D,-the" rim, cast hollow, as seen at e e, by which I am enabledto make a much larger wheel with a given amount of material, and after it is transported and set up I am enabled to increase its weight and effectiveness by filling with alighter or heavier material, as desired, such as sand or lead, 8m. After the rim has been filledthe holes or openings may be closed by plates, plugs, or screws.

I am aware that fly-wheels have been con- 

